I am the Super Admin for my company's G Suite and would like to set up permissions for my CEO so that she can take over as (or reassign the) Super Admin should something happen to me. We would like to do this by giving her the absolute minimum permissions necessary to do so, so that until she takes that step, no other settings can be accidentally changed by her.
What are the minimal G Suite privileges that a user needs to have to be able to take over as Super Admin, or to assign Super Admin to another user?